Refrigerating apparatus



Oct. '30, 1923.,

L. G. ZOPEMAN REFRIGERATING APPARATUS Filed July 27. 1921- 3 Sheets-Sheet 1 -a A TTORNEY.

'* Oct. 30', 1923.

L. G. COPEMAN REFRIGERATING APPARATUS Filed (m 27. 1921 s Sheets-Sheet 2 K 4 l VENTOR. 2W

ATTORNEY.

Oct, 30 1923. 1,472,267

, L. G. COPEMAN REFRIGER'ATING APPARATUS Filed July 27. 1921 s Sheets-Sheet 5 'fZ a iii;

By M

A TTORNEY.

Patented Oct. 30, 1923. 1,472,267

UNITED STATES PATENT OFFICE.

LLOYD G. COPEMAN, F FLINT, MICHIGAN, ASS IGNOR TO EDWIN W. ATW OOD, OF

-FLI1\T'1, MICHIGAN.

REFRIGERATING APPARATUS.

Application filed July 27, 1921. Serial No. 487,897.

To all whomit may concern: These storage tanks. of course, have a head 55 Be it known that LLLoYn G. CorEMAN, of air in them which ermits a certain range a citizen of the United States, residin at of pressures within tl e tank.

Flint, in the county of Genesee and tate Now referring to Fig. 2, it will be seen 5 of Michigan, have invented certain new and that the header m is located in the bottom useful Improvements in Refrigerating Apof the box. From this lower header rises a 60 paratus, of which the following is a specipipe n provided with a valve 0 by which the lication. outlet from said pipe may be controlled.

This invention relates to refrigeration, This pipe turns and runs along the top parand has for its object refrigerating apparatltiOIl and is provided with a pair of tus arranged to use ordinary service water branches [2 which act as spray pipes. 65 such as is drawn from the taps for domes- It will be found that the stone-work e of tic use. Coupled with this service water the box is encased by a sheet metal sheathrefrigeration is a controllable waste which ing 9 which is only slightly spaced from the is arranged to bring the water in almost imstone-work e. \Vater from the spray pipe mediate contact with the food chamber for pspreads over the top .of this sheathing g 7 the purpose of securing the maximum reand runs down between the sheathing an frigerating effects during very hot weather. the stone-work in a film and Wastes out In the drawings,- through the waste piper. Fig. 1 is an elevation of the apparatus, The operation is as follows: When any some of the parts being shown in section. service water is drawn from the storage 7 Fig. 2 is a vertical cross section of a box tank '5, as for instance, from the tap s, it of equipped with my refrigerating apparatus. course depletes the quantityof water in the Fig. 3 is a horizontal cross section on the auxiliary tank 9'. When the water has line 33 of Fig. 2 of a box equipped with fallen below a given quantity obviously the my refrigerating apparatus. pressure in the auxiliary tank falls and The box is made in any conventional Way starts the pump Working again. This sends of wood or other material and is suitably water through the refrigerating coils in the insulated to hold the low temperature conbox and of course serves to lower the tem- 30 ditions desired for a food chamber. This perature of the refrigerator. In moderate box is divided into right and left food weather this will be sufiicient to keep the rechambers which are connect-ed at top and frigerator cool providing the water is bottom bypassage-ways a and b. Within drawn from a good cold well. Most wells the walls of the food chambers are a pluralaverage from 49 to 55 degrees and such a 35 ity of coil 0. These include the top,-botrefrigerating medium will do for moderate tom and side walls. These coils are emtemperatures. However, when extreme sumbedded in a hardened plastic composition mer temperature has come it will be found which forms a stone-work 6 completely enthat water will have to be wasted in order casing the coils. to keep the temperature down to the desired 40 Now referring to Fig. 1, it will be seen level. In fact, mere wasting of the water that the water enters the refrigerator drawn through the coils will not be sufficient through the main (1!, which is connected with in extreme summer weather. There must be the pressure-controlled switch operator f a more immediate exposure of the water to and the pump 1 operated by the motor M, the atmosphere contained within the box.

45 which in turn is controlled by the switch it This is accomplished by a film of water that that is operated by the pressure-controlled is distributed down the sides of the box by switch operator f. When the pressure in virtue of the sheathing g and the spray the storage tank 2' falls below a given point, pipes 17 on top of the sheathing. the member 7 closes the electric switch it and By providing the valve 0 in the pipe n the 50 causes the motor to again operate the pump amount of spray delivered from the spray to pump more water through the main d, pipes may be regulated to,accord with the the coils 0 and into the auxiliary storage temperature of the atmosphere. This will tank 7', from which it passes through the waste enough water so that periodically the check valve is into the main storage tank 2'. pressure in the auxiliary tank will fall below a given point and the Pump will again come into play. The auxiliary storage tank is highly insulated and also the connectionswith the auxiliary storage tank so that the water that is contained therein will not lose its low temperature. Water that has once passed into the main stora e tank will not return because of the chec valve. Hence only water from the auxiliary insulated tank is drawn upon for the waste. This is kept relatively cold by'the insulation. The

auxiliary tank being of small capacity the nation of a box, water circulating coils therein, a service connectlon wlth sald 0011s for drawing water therethrough for service purposes, a sheathing in said box forming a narrow space between the walls of the box and the sheathing for containing a film of water, a pipe leading from said coils for drawing water taken from said coils and deliver'ing the same on top of said sheathing to form a film of waste water.

' 2. Inrefrigerating apparatus, the combi nation of a box, a sheathing therein spaced from the walls of the box to form a water film space, a plurality of coils in the walls of said box for circulating water therethrough, a service connection with said coils for drawing water through the coils for service use, and a pipe provided with a valve for delivering water from the coils over the top'of the sheathing to provide a film of wa- -ter of controllable quantity.

3. In a refrigerating apparatus, the combination of a box, a sheathing therein spaced from the walls of the box to form a water film space, a plurality of coils in the walls of said box for circulating Water therethrough, and means for delivering a portion of such water from the coils over the top of the sheathing and flowing the same :in the form of a film down the Walls of said sheathing.

In testimony whereof I aflix EMAN. 

